Differential



Oct. 30, 1923. u 1,472,452

c. ANDRADE, JR

DaLFFERENTIAL4 Filed sept. 2. 192'2 3 sheets-Sheet 1 INVENTOR Oct. 30, 1923.

' c. ANDRADE, JR

DIFFERENTIAL 3 Sheets-Sheet '2 INVENTOR Filed Sept. .2.r 1922 Oct. 30 1923. 1,472,452

c. ANDRADE. JR

DIFFERENTIAL Filed sept. 2. 1922 s sheets-*sheet s fly/fo INVENTOR CIPR-IANO ANDRADE, JR., GF NEW YORK, N. Y.:

DIFFEEENTIAL.

Application led September ferentials; and the objects ot my invention l are, to provide a dierential more simple in4 construction and more e'fiicientin function than those now in use.

I attain these objects by the mechanism illustrated in the accompanying drawings, in whichi Figure l is a longitudinal section elevation of the entire device on the line. R H of Fig. 2; Fig. 2 is an end view oit a part ot the devi-ce; Fig 3 is a longitudinal section elevation of the driving member A on the line R H ot Fig. 2; Fig. 4 is an outside end view of driving member A; Fig. 5 is an inside end view of driving member A; Fig. G is an end view of control member B; Fig. 7 is longitudinal section elevation ot control member B on the line R H ot Fig. 2; Fig. 8 is a detail longitudinal section elevation of the locking member D; 9 is an end view of the locking member D; Fig. l0 is a longitudinal section elevation of the driven member C1; Fig. 11 is an outside end view of driven member C1; l2- is an end view of spring E; Fig. 13 is a plan view of spring E; Fig. 14 is a side view or" bolt F; and Fig. 15 is an end view ot nut G.

SimilarV letters refer to similar parts throughout the several views.

A and A1 together form the driving member. They are identical in all respects except that A has fiange A4L with holes A10 to which may be aitixed 'a bevel tooth gear or other mechanical device to impart rot-ative motion. to A. A and A1 are held together by bolts F which pass through holes A11 and are tastened by nuts G, thus loc-king A and A1 t0- gether so as to prevent any relative motion whatever between A and A1. Driving member AA1 has transverse openings A", whose outer periphery A is so formed that the radial width of A3 is greater at the centre of said outer periphery than at the ends or' said outer periphery. Driving member AA1 has flanges A to loc-k driven members (l and. C1 trom longitudinal motion. Driving meer ber AA1 also has in its middle a circum- 2, 1922. V'semi No. 585,843.

ferential groove A13 with bearing surface A11 which contains: control member B.

Control member B is of such shapel and lsize as ito have little or no frictional contact with AA1. Control member B has transverse openings B1 which hold the lock ends D3 of locking membes D. Openings B1 have ange edges B2 which lock into the grooves D2 of locking members D and D1, and which permit locking members D and D1 to rotate freely on their own axes, and to travel to a limited degree circumferentially in relation Vto control member B; but which hold the axes of loc-king members D and'D1galt all `times parallel with the axis of driving member AA1, with the aXis'of locking member B, and with the axes of driven members C and C1. Control member B is provided on its inner circumference with grooves B3 which hold springs E. Springs E exert a constant but gentle pressure on driven members C and C1. Grooves B3 and springE may or may not be used in my device ac cording to the particular conditions of function which the device is to perfo-rm.

Driven members C and C1' have circular holes C3 with keyways C* to take the ends of the driven shafts.'

ln Fig. 2, to facilitate the identification of Y the various members, the control member B is shown wholly in dotted lines.

The operation of my device is that of ay reversible roller locking diii'erential with a multiplicity of rollers on each driven member. The object oi" the spring E is to facilitate the locking of rollers D and D1 into transverse openings A3.

I claim:

l. In a differential; a driving member with a plurality of recesses in itsy inner surface, each ot said recesses having each of its sides lower than its central portion; a first and a second driven member with outer surfaces containing no recesses, said outer surfaces of said driven membersbeing inside of the said recesses in the inner surface of the driving member; a first set of locking rollers'between the said outer surface of the rst driven member and one end of the recesses in the drivingmember, only one roller being in each recess, and adapted to lockor unlock their said adjacent members either ina forward or reverse direction; a second set of locking rollers between the said outer the other end of the recesses in the driving member, only one roller being in each recess, and adapted to lock or unlock their said adjacent members either in a forward or reverse direction; and a single ringlike control member having a plurality of elongated recesses receiving one end of the rollers, whereby the rollers have independent movement circumferentially of the control member.

2. In a differential; a driving member with a plurality of recesses in its inner surface, each of said recesses having each of its sides lower than its central portion; a first and a second driven member with outer surfaces containing no recesses, said outer surfaces o f said driven members being inside of the said recesses in the inner surface of the driving member; a first set of locking rollers between the said outer surface of the first driven member and one end of the recesses in the driving member, only one roller being in each recess, and adapted to lock or unlock their said adjacent members either in a forward or reverse direction; a second set of locking rollers between the said Outer surface of the second driven member and the other end of the recesses in the driving member, only one roller being in each-recess, and adapted to lock or unlock their said adjacent members either in a forward or reverse direction; and a single ringlike control member having a plurality of elongated recesses receiving one end of the rollers whereby the rollers have independent member, and whereby the first setof locking rollers may move to a limited extent in relation to the second set of locking rollers about the periphery of said driven members, and whereby the rst set of locking rollers are held to a limited circumferential motion relatively to each other about the said outer surface of the first driven member, and whereby the second set of locking rollers are held to a limited circumferential motion relatively to each other about the said outer surface of the second driven member.

CIPRIANO ANDRADE, Jn. Witnesses:

J AMES W'. BAILEY?, ELEANOR HAIGHT.

. movement circumferentially of the control 

